Binary to Hexadecimal Converter: Base 2 to Base 16

Binary to Hexadecimal Converter

Convert between binary and hexadecimal numbers

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The binary system (base 2) uses only digits 0 and 1, and is the language computers use internally. The hexadecimal system (base 16) uses digits 0–9 and letters A–F, and is often used as a compact, human-friendly way to represent binary values.

For example, the binary number 1010 equals A in hexadecimal (or 0xA). Type in either field below and the other updates instantly.

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Hexadecimal

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Quick Reference (all bases)

Converting directly between binary and hexadecimal, without passing through decimal, is a common need in low-level programming and computer science, this converter handles it instantly in either direction.

How to use this binary to hexadecimal converter

Enter a value in the Binary field to see the equivalent in hexadecimal.
Or enter a value in the Hexadecimal field to see the equivalent in binary, either field updates the other instantly.

What this converter does

The binary system (base 2) uses only digits 0 and 1, the language computers use internally. The hexadecimal system (base 16) uses digits 0-9 and letters A-F, often used as a compact, human-friendly way to represent binary values.

1010 (binary) = A (hexadecimal), written as 0xA in programming notation

Why binary-to-hex conversion is especially simple

Because 16 is a power of 2 (2⁴), each hexadecimal digit corresponds to exactly 4 binary digits, this makes converting between the two a matter of grouping binary digits into sets of 4 from the right and converting each group directly to its hex digit, rather than requiring a full base conversion through decimal. This clean relationship is exactly why hexadecimal became the standard compact notation for binary data in computing.

Frequently asked questions

How do I convert binary to hexadecimal quickly?

Group the binary digits into sets of 4 starting from the right, then convert each group of 4 bits directly to its corresponding hex digit (0-9, A-F), since 16 is a power of 2, this avoids needing a full decimal conversion step.

What does 0xA mean in programming?

The “0x” prefix indicates a hexadecimal number in most programming languages, so 0xA represents the hexadecimal value A, equal to decimal 10 or binary 1010.